Liquid cooled condenser



2 Sheets-Sheet l ,wf/fm W. BUSCHBECK ETAL LIQUID COOLED CONDENSER Filed Feb. 24, 1939 Sept. 29, 1942.

INVENTORS WER/VER BUSCHBECK w/LHELM c EIDE/2 BY ATTORNEY Sept. 29, 1942. w. BuscHBEcK ETAL LIQUID COOLED CONDENSER Filed Feb. 24. 1939 2 Sheets-Sheet 2 A, li ankam S 5 F mm www Y OHE E me N ESH R vuc m N56 T IRM A Patented Sept. 29, 1942 UNITED STATE s PATENT -oFFlcE i LIQUID COOLED CONDENSER Werner Buschbeck and Wilhelm Schneider, Ber lin, Germany; vested in the Alien Property Custodia Application February, 1939, Serial No. 258,152

In Germany February 25, 1938 6 Claims.

, appears at high load. As in all electric appa-- ratus and machines, it is important to pass oil this undesired heat. When forming a stack from a plurality of, circular plates having a certain-space distance between them, the cooling agent which may b eair or oil is situated between the plates will have only a very poor circulation causing a considerable stagnation of heat.

vAn object of this invention is to provide anovel,

compact and eiiicient liquid cooled condenser'. Alcondenser according to the invention .is constructed in the following manner as shown b the accompanying drawings, in which:

Fig. llschematically shows acondenser of .this invention in section;

Fig. 2 is a perspective view of a tubular insulating plate spacer;`

Fig. 3 is asectional view of the completed condenser of this invention.

The individual plates P have in the center thereof a circular shaped aperture or the like. Plates P have metallic 'layers L located on the circular margins of both surfaces. 'I'he plates suitable material, such as, for example, hard paper, ceramic material, artiilcial resin, metal,- or

thus the tendency to rise will actually be delivered upwards.

Fig. 3 shows a preferred mode of construction of the condenser in which the plates are assembled as a complete stack and fastened only to the insulating cover` D of the casing G which encloses the entire condenser. 'I'he condenser stack including the insulating spacers S and the base plate E is suspended by a metal strap M and bolts B to the cover in the vicinity of the circumference. A strap Z .retains the plate E', two

insulating spacers S and contact springs C to the cover D. Supporting bolts F may also serve atthe same time as a return circuit for the voltage in that they are connected through contact springs.C with the appropriate metallic layer L of the condenser plates. Connections may pass out through the casing by means of tubular thread portions T. The plates P spaced by the rings R. are pressedbetween the base plate E and top plate E. In thisvmanner any desired number of plates can be combined to build up a condenser .whereby through suitable connection of the individual layers with one an.

other avnumber of plates may be connected in parallel, which is' notl shown, or in series, as shown. 'Ihe entire plate stack is covered by the cover plate D having a central hole coaxial Vwith the condensoer plates. There is arranged 'are spaced by means of short tubular pieces R oi 2 which represents va single tubular piece R.

The condenser' column thus formed is completed at one end by a metallic plate E at the lower end thereof. At the other end the cooling agent which may be air or oil passes through an opening in thecover plate D into the space formedv by the holes ,in the plates and tubular pieces, and then between the individual plates and-leaves theopenings in the tubular pieces whereafter it glides inthe outer space over the surfaces of the plates thereby eiiectingan e!- iective removall of the heat produced. The

Y course of the coolingl agent is indicated in Fig.'

l by.arrows and dash lines. Obviously, it is also possible tohave the cooling means entering upon the cover plate a tubular section U having a iiange V, which is pressed against top plate E' by a .helical spring X resting against a shouldered aperture portion located inthe cover so that the entire plate stack is tightly held together without the possibility that stresses and fractures will appear at heating and through mechanical action. The tubular section serves at the same time as an inlet for the cooling liquid which is inserted' through a central opening in the cover. To this end, the tubular piece is tightly and at the same time flexibly joined with the cover D by means of a leather packing Y or thelike. The described structure aiiords an especially simple mounting sincev the entire plate arrangement with insulators S and the lateral electric tap connections T, etc., can be mounted at the bottomand leaving at the top byirlacing the entire apparatus according to Fig. l up- `side down. AThis the advantage that the 'heated oil having a lower specific weight and in the completed state on the cover whereafter it is' placed together with the cover into the casing accommodating the condenser and then screwedv on by means of bolts N and nuts O. The lateral connections T may be passed through suitable bushings W located in the side oi casing Gl for making external connections thereto.

What is claimed is:

1. A duid cooled condenser comprising a plurality of annular ceramic plates having a central aperture therein, each plate having a metallized band located on eachsurface intermediate said aperture and the perimeter thereof, means for passing a cooling fluid through said aperture and over said metallized band in a radial direction, said means including a plurality of rings forming together with the apertures o said plates a hollow space from which the cooling. fluid passes, said rings having a pluralityof openings for uniformly allowing the cooling fluid to flow over each metallized coating on the surface of said plates.

2. A fluid cooled condenser comprising a pluralit'y of ceramic plates, each plate having a central aperture therein, a metallized band located on each surface intermediate each aperture and the perimeter thereof, means for spacing said apertures apart to form a stack-said means including a plurality of rings having slots arranged so'that the apertures in said plates form a channel through which cooling fluid passes and cooperating with said Vslots so that the cooling iiuid passes over the surface of Said metallized band in a radial direction to cool said plates.`

3. A uid cooled condenser comprising a plurality of ceramic plates, each plate having a central aperture therein, a metallized band located on each surface intermediate each aperture and the perimeter thereof, means for spacing said apertures apart to form a stack, said means including a plurality of rings of insulating material Ahaving slots arranged so that the apertures in said plates form a channel through which cooling uid passes and cooperating with said slots so that the cooling uid passes over the surface of said metallized band in a radial direction to cool said plates.

4. A fluid cooled condenser comprising a plurality of ceramic plates, each plate having a central aperture therein, a metallized band located on each surface intermediate each aperture and the perimeter thereof, means for spacing said plates apart to form a stack; said means including a plurality of rings of metal having slots arranged so that the apertures in said plates form a channel through which cooling uid passes and cooperating with said slots so that the cooling fiuidpasses over the surface of said l the upper and lower edges and alternately arranged with respect to each other, said slots also arranged so that the apertures in said plates form a channel through Awhich cooling fluid passes and cooperating with said slots so that the cooling fluid passes over the surface of said metallized band in a radial direction to cool said plates.

6. A fluid cooled condenser comprising a plurality of ceramic plates, each plate having a central aperturey therein, a metallized band located on4 each surface lntermediateeach aperture and the perimeter thereof, means for spacing said plates apart to form a stack, said means including a plurality of rings having slots arranged so that the apertures in said plates form a channel through which cooling fluid passes and cooperating with said slots so that the cooling uid passes over the surface of said metallized band in a radial direction to cool said plates, and lateral terminals connected at intermediate points on said stack.

WERNER BUSCHBECKq WILHELM SCHNEIDER. 

